36results about How to "Not prone to thermal deformation" patented technology

The invention provides a thermal fatigue testing machine which is characterized by comprising a support and a thermal fatigue testing specimen, wherein the support is of a support pillar structure with an upper flange and a lower flange; the center of the support is provided with a support cooling water channel; the upper part of the thermal fatigue testing specimen is clamped at the upper flange of the support, while the lower part of the thermal fatigue testing specimen is clamped at the lower flange of the support; and the outer wall of the thermal fatigue testing specimen is wound with an induction heating coil. The thermal fatigue testing machine is reasonable in structure, scientific in operation, remarkable in effects and suitable to popularization and application in the field of thermal fatigue testing.

The chip module consists of a high thermal diffusivity base board, at least one chip mounted on base board. The high thermal diffusivity base board is made by forming insulation layer on metal compound material sheet and then mounting copper wire layer on the insulation layer. The copper wire layer can be used in adhering chip. For the material of base board, the aluminum base with high coefficient of heat-transfer is selected.

A headlamp for vehicles, wherein a body support portion (22c) of a light source bulb (22) is slidingly engaged with an inner peripheral surface of an annular wall (24B) of a reflector (24), and the flange portion (24d) ) abuts against the rear end surface of the annular wall (24B), and in this state, the flange portion (24d) is clamped from the front and rear sides by the annular wall (24B) and the light bulb fixing member (32), thereby placing the light source The bulb (22) is fixed on the reflector (24). Three cutout holes (24m) penetrating through the annular wall (24B) are formed in front of the sliding engagement position between the annular wall (24B) and the body support portion (22c) of the light source bulb (22). The inner space of the reflecting mirror (24) is communicated with the outer space through these cutout holes (24m), and the heat inside the reflecting mirror (24) is dissipated to the outside, which can prevent the high temperature of the reflecting mirror and reduce the possibility of thermal deformation of the reflecting mirror, etc. sex.

A vertical column structure of a numerical control floor-type boring and milling machine comprises a vertical column body, a wall plate, a rib plate and an inner wall plate parallel to the wall plate. One end of the rib plate is connected with the wall plate, and the other end of the rib plate is connected with the inner wall plate. With the double wall plates and 'latticed' ribs, the vertical column structure is domestically initiated, is high in rigidity, is not easy to generate heat deformation when the machine runs, and cannot affect geometric accuracy of the machine.

The invention involves a kind to be possible completely to substitute the petroleum chemical industry enterprise to refine oil in the installment centrifugal pump, the reciprocating pump or imports the screw rod to pump, and has thermostablly may reach 450deg.C, the performance stably, safe is reliable, the economical highly effective high temperature screw rod pumps. It both does not have the centrifugal pump to pump out the phenomenon, and has overcome the reciprocating pump service work load in a big way, overhaul period long characteristic, and the thorough settlement tradition double screw rod has pumped when transports above 300deg.C the high temperature medium the pump body is easy to appear the thermal deformation, causes to pump holds the axis, pumps the end surface and the mechanical seal divulges as well as pumps the association with the electricity association when the thermal state must readjust to the medium a series of questions. Its unique feature is: 1. The pump body uses opens the type structure, by foundation strut seat stay, but the bearing seat also is shoulders through the pump body, like this guaranteed has pumped cannot interfere with the normal work under the high temperature operating mode as a result of the pipeline thermal deformation; 2. Uses the collection attire type bearing gear structure, the bearing riggers band entire package water cooling, causes the bearing gear not the high temperature environment influence; 3. The host, all uses three struts localizations from the moving axis and the wing nut. When pumps suitablly uses in the higher working pressure.

The invention discloses a positioning jig for numerical control machining thin-wall product side holes. The positioning jig for numerical control machining the thin-wall product side holes comprises abase, a positioning block, a rigid protection plate and a cooling device. The base is arranged on a numerical control machine tool; the positioning block is fixed on the base; a machined part is clamped onto the positioning block; processing slots are formed in two horizontal side faces of the positioning block; the rigid protection plate is made of porous aluminum materials; a plurality of rectangular heat-radiating slots are formed in the rigid protection plate along a length direction in a penetrating way; a plurality of circular through holes are formed in slot walls of two sides of the heat-radiating slots; the through holes in each two adjacent slot walls are formed in a staggering way and are used for communicating spaces of each two adjacent heat-radiating slots; and the cooling device comprises a water tank, a water pipe and a nozzle. According to the positioning jig adopted by the invention, heat on the machined part can be radiated conveniently, so that the machined part isnot easy to deform by heating.

The invention relates to a correct timing cover piece of a motor. The cover piece is characterized in that an installation support lug and a water pump installation support lug are installed on the edge of the cover piece, the cover piece is formed by an upper correct timing cover piece and a lower correct timing cover piece in an overlap joint mode, a first overlap-joint step is installed on the overlap-joint edge of the upper correct timing cover piece and a second overlap-joint step is installed on the overlap-joint edge of the lower correct timing cover piece. The upper correct timing cover piece and the lower correct timing cover piece are connected in the overlap joint mode through the first overlap-joint step and the second overlap-joint stage. The first overlap-joint stage is provided with a first water pump installation hole, the second overlap-joint stage is provided with a second water pump installation hole, and after the upper correct timing cover piece and the lower correct timing cover piece are connected in the overlap-joint mode, the first water pump installation hole and the second water pump installation hole are overlapped. The water pump installation support lug is located on the lower correct timing cover piece, a length ratio of the upper correct timing shroud cover piece and the lower correct timing cover piece is 2-4: 6-8. The correct timing cover piece of the motor has the advantages of enabling a correct timing adjustment of the motor and maintaining of a camshaft gear train to be convenient.

Disclosed is a modified planar rolling method. The planar rolling method comprises the steps that a workpiece is attached under a planet wheel and makes contact with balls arranged on an upper grinding disk; the workpiece applies load to the planet wheel; the upper grinding disk tends to move downwards under the action of the rolling load; when the rolling load exceeds the pretightening force of springs, the upper grinding disk moves downwards continuously along bolts and the pretightening force also increases gradually until the pretightening force is in balance with the rolling load; the springs in a compression state are capable of providing restoring force and self-adaptively adjusting the contact state of the balls and the surface of the workpiece; the workpiece is in a rotation and a revolution along with the planet wheel; and the balls on the upper grinding disk roll the surface of the workpiece again and again and even rolling tracks are left on the surface. The invention further provides a rolling grinding device for achieving the planar rolling method. The modified planar rolling method is good in uniformity and relatively high in machining precision; the thermal deformation of the machined surface is not prone to occurring.

The invention provides an electric cooker which comprises a base and a support part connected with the base, and further comprises a protection layer arranged on the surface of the support part, and aconnecting part arranged between the base and the support part. The protection layer is arranged on the surface of the support part; an assembly structure is simple; and due to the design, the electric cooker is not prone to thermal deformation and mechanical deformation; and the electric cooker is simple to assemble and safe to use.

The invention discloses a hydraulic motor with an integral output shaft. The hydraulic motor comprises a shell, the integrated output shaft, a thrust plate, a retainer plate, a plunger, a cylinder body and an end cover, wherein the integrated output shaft is sequentially equipped with a front contact section, a spherical section, a middle contact section, a synchronous section and a rear contact section from front to back in the axial direction; the front contact section is rotatably connected to the front end of the shell through a front bearing; a special-shape spring is arranged on the spherical section in a sleeving manner, and the spherical section is elastically connected with the rear surface of the retainer plate through a special-shape spring; the middle contact section is a convex ring retaining shoulder and is resisted against the front end of the cylinder body; the synchronous section is arranged in the cylinder body and is connected with the cylinder body; the rear contact section penetrates through a flow distribution plate and is rotatably connected with the end cover through a rear bearing; and a floating piston ring is arranged at the front end of the end cover, and a corrugated spring is arranged between the floating piston ring and the end cover. According to the hydraulic motor with the integral output shaft disclosed by the invention, a ball joint structure of a ball joint type output shaft is eliminated, the influence of the coaxiality on the quality and the performance of products during processing of the products can be greatly reduced, the reliability is high, the structure is simple, the hydraulic motor is mounted and maintained more conveniently.

The invention provides an IBC photovoltaic battery module and a welding process thereof. The IBC photovoltaic battery module comprises a battery piece, an insulating resin layer, a plurality of solder paste layers and copper foil strips, wherein the insulating resin layer is arranged on the back surface of the battery piece; the plurality of solder paste layers are arranged on the surface of the insulating resin layer, and the plurality of solder paste layers are linearly arranged on the surface of the insulating resin layer at intervals; and the copper foil strips are arranged on the surfaces of the solder paste layers, the copper foil strips are arranged to be in a long strip shape, and the copper foil strips are connected with the solder paste layers on the same side in a welding mode. In the invention, the insulating resin layer and the solder paste layers are arranged on the back surface of the battery piece, and the solder paste layers are connected and connected in series through the copper foil strips, so that an interconnection strip is replaced, and the cost is reduced. Meanwhile, the generation of hidden cracks of the IBC battery piece is reduced by utilizing the good mechanical property and heat resistance of the insulating resin layer, and the assembly performance is more excellent.

The invention relates to the field of packaging materials, and discloses a high-heat-resistance degradable modified polystyrene foam packaging material and a preparation method thereof. The foam packaging material is prepared from styrene, alkenyl graft modified starch and rosmarinic acid modified tetravinyl tetraphenyl-POSS as raw materials through the following steps: (1) mixing a dispersing agent with water, adding an initiator and styrene, uniformly dispersing, and reacting at 90-100 DEG C for 1-2 hours; (2) adding alkenyl graft modified starch and rosmarinic acid modified tetravinyl tetraphenyl-POSS, uniformly mixing, reacting for 4-6 hours at 100-120 DEG C, and drying to obtain modified polystyrene particles; and (3) foaming and curing the modified polystyrene particles to obtain themodified polystyrene foam packaging material. The foam packaging material provided by the invention has good degradability, heat resistance and oxidation resistance, can be used for packaging food with high temperature, is not easy to age, and has small decomposition pressure on the environment after being discarded.

A grinding roller for a high-dispersion three-roller machine for the production of conductive paste proposed by the present invention includes a roller main body, a liquid inlet and outlet sleeve, a rotating end and a connecting plate. The liquid outlet and the liquid outlet are always connected with the cooling liquid channel, and the liquid inlet and outlet sleeves are rotatably connected with the liquid inlet and outlet shafts at the rotating end through the limit sleeve, and are sealed by the sealing ring in the sealing groove. The invention has a simple structure and a reasonable design. When the grinding roller When the cylinder rotates, the liquid inlet and outlet sleeves do not rotate accordingly, and the liquid inlet and outlet are always connected with the cooling liquid channel under the action of the liquid inlet slot and the liquid outlet slot. The sealing is good, the cooling liquid is not easy to leak, and the cooling The liquid channel adopts an S-shaped design, the delivery of the cooling liquid is smoother, and the delivery area of ​​the cooling liquid is relatively comprehensive and accurate. The roller cools down quickly and is not prone to thermal deformation. Furthermore, when grinding and dispersing the conductive paste, it can improve the grinding and dispersing effect of the conductive paste, prolong the continuous working time of the three-roller machine, and improve the grinding and dispersing efficiency of the conductive paste.

The invention discloses a high-temperature vacuum tabletting equipment for polymer. The high-temperature vacuum tabletting equipment comprises a top plate, a lower mold cushion plate, a screw rod sleeve, a screw rod, a motor, a vacuum pump and a heating rod, the top plate is connected with a bottom plate through a plurality of sets of tiebars, an upper mold heat insulation plate is arranged on thelower end surface of the top plate, an upper mold is arranged on the lower end surface of the upper mold heat insulation plate, an upper mold cooling channel is arranged on the upper mold, an elasticcorrugated pipe is arranged on each of the outer sides of the upper mold heat insulation plate and the upper mold in a sleeving mode, the screw rod sleeve is connected with the screw rod to form a synchronous rotation structure so as to drive the lower mold cushion plate to move, the screw rod is rotatably connected with a mounting bracket arranged on each tiebar through a screw rod fixing base,the screw rod is connected with a speed reducer through a coupling, a lower mold cooling channel and a pressure sensor are arranged on a lower mold arranged on the lower mold cushion plate, a sealed cavity is formed among the lower mold, the elastic corrugated pipes and the top plate, and a vacuumizing hole for connecting the air inlet end of the vacuum pump is arranged on the cavity. According tothe high-temperature vacuum tabletting equipment, heating of the vacuum environment for raw materials to be processed can be improved, the heating temperature is high, and 10 tons of pressure can beprovided for meeting the needs of tabletting.

The present invention relates to a vibration-damping urethane resin composition, a vibration-damping molded urethane resin object, and a method for forming the molded object, the vibration-damping urethane resin composition comprising a castor-oil-derived polyol (A), an isocyanate (B), and inorganic particles (C) which contain a phase-change substance therein.

The invention discloses a glass gathering machine, comprising a fixed seat, a rotary disk connected to the fixed seat and a rack connected to the rotary disk, wherein the rack is provided with a rocker; the rocker is hinged with a rod seat; the rod seat is connected with a gathering rod; the gathering rod comprises a gathering rod body which is composed of a conical rod section and a straight rod section; a gathering ball is connected to the front end of the conical rod section; the straight rod section comprises a core shaft; the outer surface of the core shaft is provided with a plurality of circular grooves; a shaft section between two adjacent circular grooves is a communication section; the communication section is provided with a communication groove communicating the two adjacent circular grooves; a shell is tightly sleeved on the core shaft; the shell encloses the circular grooves to a plurality of circular water inlet channels and encloses the communication groove to a communication water channel; a water outlet is disposed in the core shaft; the forefront end of the circular water inlet channel is communicated with the water outlet; and the shell is provided with a water inlet communicated with the rearmost circular water inlet channel. The gathering rod of the glass gathering machine has a good cooling effect and cannot generate thermal deformation easily, and can effectively prolong the service life of the gathering rod.